Hook



FIG. 1 is a front view of the hook;

FIG. 2 is a left or right side view of the hook;

FIG. 3 is a back view of the hook;

FIG. 4 is a top view of the hook; and,

FIG. 5 is a bottom view of the hook. 

CLAIM I claim the ornamental design for a hook, as shown and described above. 